These devices could be reset by either using the RST pin or by initiating the same via a PMBus command. Once a reset is initiated, the device switches off the sequencing, reloads the non-volatile configuration from Flash to RAM, and brings up the sequencing back again according to settings in PMBus register ON_OFF_CONFIG.
Hardware reset: This is initiated by pulling down the RST pin low.
Software rest: The SOFT_RESET bit in MFR_MODE register should be set, then cleared then set again within 8ms to initiate a rest via software.